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nimble/phy/nrfx: Add support for extending T_IFS #1610

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Sep 14, 2023
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nimble/phy/nrfx: Add support for extending T_IFS #1610

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2 changes: 2 additions & 0 deletions nimble/drivers/nrf5x/src/ble_phy.c
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Original file line number Diff line number Diff line change
Expand Up @@ -852,6 +852,8 @@ ble_phy_wfr_enable(int txrx, uint8_t tx_phy_mode, uint32_t wfr_usecs)
* by waiting 1 usec more.
*/
end_time += 1;

end_time += MYNEWT_VAL(BLE_PHY_EXTENDED_TIFS);
} else {
/*
* RX shall start no later than wfr_usecs after RX enabled.
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10 changes: 10 additions & 0 deletions nimble/drivers/nrf5x/syscfg.yml
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Expand Up @@ -26,6 +26,16 @@ syscfg.defs:
experimental: 1
value: 0

BLE_PHY_EXTENDED_TIFS:
description: >
This allows to extend T_ifs (inter-frame spacing) by additional
microseconds to improve interoperability with peripherals that
send packets too late (eg 153us). This prolongs reception time by
additional microseconds. Defaults to 2us to improve operations with
devices already on the market.
range: 0..4
value: 2

BLE_PHY_SYSVIEW:
description: >
Enable SystemView tracing module for radio driver.
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